Santana do Araguaia climate — normals and trends
Santana do Araguaia (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 1,869 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is September (28.5 °C on average) and the coldest is January (25.1 °C). Rainfall peaks in January.
Santana do Araguaia averages 0 frost days, 245 hot days (≥ 30 °C) and 195 rainy days per year.
No statistically significant temperature trend emerges for Santana do Araguaia between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 41.5 °C (on 14 October 1963) and the coldest 15.3 °C (on 1 August 2020).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Santana do AraguaiaPará
- coords
- -9.34°, -50.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
31.4°C
Average daily low
22.2°C
Annual rainfall
1,869mm
Sunshine / day
9.8h
Mean relative humidity
75%
Average peak wind
9.3km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
245 d/yr
Rainy days (≥ 1 mm)
195 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.2 °C
Average feels-like low
25.3 °C
Average peak gust
27.2 km/h
Tropical nights (≥ 20 °C)
346 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.5 °C
14 October 1963
Coldest day
15.3 °C
1 August 2020
Wettest day
117 mm
16 May 2019
Windiest day
25.0 km/h
23 September 1961
Strongest gust
57.2 km/h
23 September 1961
Hottest feels-like
45.0 °C
28 October 1987
Coldest feels-like
14.0 °C
1 August 2020
Sunniest day
12.5 h
26 December 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.7 °C | +0.4 °C | 363 mm | +55 mm |
| Feb | 30.1 °C | +0.8 °C | 270 mm | -15 mm |
| Mar | 30.7 °C | +1.5 °C | 277 mm | -23 mm |
| Apr | 31.4 °C | +1.7 °C | 142 mm | -77 mm |
| May | 32.6 °C | +1.6 °C | 20 mm | -54 mm |
| Jun | 33.9 °C | +1.5 °C | 0 mm | -7 mm |
| Jul | 34.5 °C | +1.1 °C | 0 mm | -3 mm |
| Aug | 36.2 °C | +1.2 °C | 0 mm | -5 mm |
| Sep | 36.0 °C | +1.1 °C | 20 mm | -20 mm |
| Oct | 33.8 °C | +1.2 °C | 92 mm | -46 mm |
| Nov | 31.7 °C | +1.0 °C | 162 mm | -60 mm |
| Dec | 30.0 °C | +0.2 °C | 226 mm | -43 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Santana do Araguaia?
Santana do Araguaia has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 1,869 mm of precipitation per year.
What is the hottest day ever recorded in Santana do Araguaia?
The hottest day measured in Santana do Araguaia between 1940 and 2025 was 14 October 1963, reaching 41.5 °C.
What is the coldest day in Santana do Araguaia?
The coldest day measured in Santana do Araguaia between 1940 and 2025 was 1 August 2020, at 15.3 °C.
Does it snow in Santana do Araguaia?
Almost never: Santana do Araguaia sees virtually no snow, with about 0 frost days per year.
Has the climate of Santana do Araguaia warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Santana do Araguaia.
What is the wettest day in Santana do Araguaia?
The wettest day measured in Santana do Araguaia between 1940 and 2025 was 16 May 2019, with 117 mm of rain in 24 hours.
What was the windiest day in Santana do Araguaia?
The windiest day measured in Santana do Araguaia between 1940 and 2025 was 23 September 1961, with winds reaching 25.0 km/h.
What is the warmest month in Santana do Araguaia?
The warmest month in Santana do Araguaia is September (28.5 °C on average); the coldest is January (25.1 °C).
How much does it rain in Santana do Araguaia?
Santana do Araguaia receives on average 1,869 mm of precipitation per year, spread over about 195 rainy days.
Is it sunny in Santana do Araguaia?
Santana do Araguaia gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Santana do Araguaia?
Yes: Santana do Araguaia has on average 346 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Santana do Araguaia?
In Santana do Araguaia, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 28 October 1987, and the lowest was 14.0 °C on 1 August 2020.
Compare Santana do Araguaia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santana do Araguaia